/* ==========================================================================
   Selçuk Bilgiç — Atletik Performans Antrenörü
   Ana stil dosyası
   ========================================================================== */

:root {
  --bg: #0A0A0B;
  --bg2: #0E0E11;
  --bg3: #15151A;
  --paper: #F2EEE6;
  --muted: rgba(242, 238, 230, 0.56);
  --muted2: rgba(242, 238, 230, 0.40);
  --faint: rgba(242, 238, 230, 0.10);
  --faint2: rgba(242, 238, 230, 0.055);
  /* ============================================================
     TEK RENK AYARI — sitenin tüm vurgu tonunu buradan değiştir.
     Örnekler:  yeşil #3FA34D · mavi #3B82F6 · kırmızı #E23B3B
     Değiştirdiğinde degrade, parıltı, kenarlık, gölge — hepsi
     otomatik olarak bu renge göre türetilir.
     ============================================================ */
  --accent: #C9A24B;

  --gold: var(--accent);                                     /* ana ton */
  --gold2: #E6C988;                                          /* açık ton (degrade ucu) */
  --gold-dark: #8f6a28;                                      /* koyu ton (disk gradyanı) */
  --disp: 'Archivo', system-ui, sans-serif;
  --sans: 'Manrope', system-ui, sans-serif;
  --brand: 'Outfit', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--paper);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; }

::selection { background: var(--gold); color: #0A0A0B; }

/* Keyframes ------------------------------------------------------------- */
@keyframes sbCue { 0%, 100% { transform: translateY(0); opacity: .35 } 50% { transform: translateY(7px); opacity: 1 } }
@keyframes sbMarquee { from { transform: translate3d(0,0,0) } to { transform: translate3d(-50%,0,0) } }
@keyframes sbBand { from { transform: translate3d(0,0,0) } to { transform: translate3d(-50%,0,0) } }
@keyframes sbBandRev { from { transform: translate3d(-50%,0,0) } to { transform: translate3d(0,0,0) } }
@keyframes sbAura { 0%, 100% { transform: translate(0, 0) scale(1); opacity: .45 } 50% { transform: translate(2%, 3%) scale(1.1); opacity: .7 } }
@keyframes sbCol { from { transform: translate3d(0,0,0) } to { transform: translate3d(0,-50%,0) } }
@keyframes sbFloat { 0%, 100% { transform: translateY(0) } 50% { transform: translateY(-14px) } }
@keyframes sbFloat2 { 0%, 100% { transform: translateY(0) } 50% { transform: translateY(12px) } }
@keyframes sbSpin { from { transform: rotate(0) } to { transform: rotate(360deg) } }

/* Özel AOS animasyonu: rafine yükseliş (kartlar için) ------------------- */
/* Süre + easing doğrudan burada tanımlı — AOS özel animasyonlara süre
   uygulamadığı için geçişi kendimiz garanti ediyoruz. */
[data-aos="sb-rise"] {
  opacity: 0;
  transform: translateY(64px) scale(0.92);
  filter: blur(10px);
  transition: opacity .9s var(--ease), transform .9s var(--ease), filter .9s var(--ease);
  will-change: opacity, transform, filter;
}
[data-aos="sb-rise"].aos-animate {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
}

/* Diagonal hashtag bands ------------------------------------------------ */
.sb-tag {
  font-family: 'Archivo', sans-serif;
  font-weight: 800;
  font-style: italic;
  font-size: 21px;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  padding: 0 22px;
}

/* Interactive states ---------------------------------------------------- */
summary::-webkit-details-marker { display: none; }
summary { list-style: none; cursor: pointer; }
details[open] [data-faq-icon] { transform: rotate(45deg); }

.sb-input:focus {
  border-color: var(--gold) !important;
  outline: none;
  box-shadow: 0 0 0 3px rgb(from var(--gold) r g b / 0.16);
}
.sb-input::placeholder { color: rgba(242, 238, 230, 0.30); }

.sb-seg input { position: absolute; opacity: 0; pointer-events: none; }
.sb-seg label { transition: border-color .3s var(--ease), background .3s var(--ease), color .3s var(--ease); }
.sb-seg label:hover { border-color: rgb(from var(--gold) r g b / 0.45); }
.sb-seg input:checked + label { border-color: var(--gold); background: rgb(from var(--gold) r g b / 0.12); color: var(--paper); }
.sb-seg input:focus-visible + label { box-shadow: 0 0 0 3px rgb(from var(--gold) r g b / 0.16); }

.sb-link-u { position: relative; }
.sb-link-u::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0;
  height: 1px;
  background: var(--gold);
  transition: width .4s var(--ease);
}
.sb-link-u:hover::after { width: 100%; }

.sb-card { transition: opacity .7s var(--ease), transform .7s var(--ease), filter .7s var(--ease), border-color .5s var(--ease), background .5s var(--ease); }
.sb-card:hover { transform: translateY(-6px); border-color: rgb(from var(--gold) r g b / 0.40) !important; background: var(--bg3) !important; }

/* Süreç zaman çizelgesi (scroll ile dolan hat) --------------------------- */
.sb-tl-fill { transition: height .2s linear; will-change: height; }
.sb-tl-dot { transition: border-color .4s var(--ease), background .5s var(--ease), box-shadow .5s var(--ease); }
.sb-tl-dot i { transition: color .4s var(--ease); }
.sb-tl-step.is-active .sb-tl-dot {
  border-color: var(--gold);
  background: radial-gradient(120% 120% at 30% 20%, rgb(from var(--gold) r g b / 0.24), rgb(from var(--gold) r g b / 0.05));
  box-shadow: 0 0 0 6px rgb(from var(--gold) r g b / 0.10), 0 0 20px rgb(from var(--gold) r g b / 0.25);
}
.sb-tl-step.is-active .sb-tl-dot i { color: var(--gold); }

/* Süreç yan paneli: aktif adıma göre değişen görsel ---------------------- */
[data-tl-img] { opacity: 0; transform: scale(1.04); transition: opacity .7s var(--ease), transform 1.2s var(--ease); }
[data-tl-img].is-current { opacity: 1; transform: scale(1); }
[data-tl-panel-dot] { transition: background .5s var(--ease); }

@media (max-width: 980px) {
  .sb-tl-grid { grid-template-columns: 1fr !important; }
  .sb-tl-panel { display: none !important; }
}
@media (max-width: 560px) {
  .sb-tl-step { grid-template-columns: 40px 1fr !important; gap: 18px !important; }
  .sb-tl-dot { width: 40px !important; height: 40px !important; }
  .sb-tl-dot i { width: 18px !important; height: 18px !important; }
  .sb-tl-track, .sb-tl-fill { left: 19px !important; top: 20px !important; }
  .sb-tl-track { bottom: 20px !important; }
}

.sb-cta { transition: transform .25s var(--ease), box-shadow .4s var(--ease), filter .25s var(--ease); }
.sb-cta:hover { transform: translateY(-2px); box-shadow: 0 14px 40px rgb(from var(--gold) r g b / 0.30); filter: brightness(1.04); }
.sb-cta:active { transform: translateY(0); }

.sb-ghost { transition: border-color .3s var(--ease), color .3s var(--ease), background .3s var(--ease); }
.sb-ghost:hover { border-color: var(--paper) !important; background: rgba(242, 238, 230, 0.04); }

.sb-chan { transition: border-color .4s var(--ease), background .4s var(--ease), transform .4s var(--ease); }
.sb-chan:hover { border-color: rgb(from var(--gold) r g b / 0.45) !important; background: var(--bg3) !important; transform: translateX(4px); }

.sb-about-grid { grid-template-columns: 1fr 1fr; }

/* Responsive ------------------------------------------------------------ */
@media (max-width: 940px) {
  .sb-hero-grid { grid-template-columns: 1fr !important; text-align: center; }
  .sb-hero-grid .sb-hero-copy { align-items: center !important; }
  .sb-hero-visual { margin: 8px auto 0 !important; }
  .sb-hero-proof { justify-content: center !important; }
}
@media (max-width: 600px) {
  #ust { min-height: 0 !important; padding-top: 92px !important; padding-bottom: 40px !important; }
  .sb-hero-visual { height: clamp(400px, 52vh, 480px) !important; }
}
@media (max-width: 860px) {
  .sb-bands { display: none !important; }
  .sb-about-grid { grid-template-columns: 1fr !important; }
}
@media (max-width: 820px) {
  .sb-nav-links { display: none !important; }
}
@media (max-width: 760px) {
  .sb-hide-sm { display: none !important; }
}

/* ==========================================================================
   Mobil menü (hamburger + tam ekran panel)
   ========================================================================== */
.sb-burger {
  display: none;
  position: relative;
  width: 44px; height: 44px;
  flex: none;
  padding: 0;
  border: 1px solid var(--faint);
  border-radius: 12px;
  background: var(--faint2);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: border-color .3s var(--ease), background .3s var(--ease);
  z-index: 130;
}
.sb-burger:hover { border-color: rgb(from var(--gold) r g b / 0.45); }
.sb-burger span {
  position: absolute;
  left: 50%;
  width: 20px; height: 2px;
  border-radius: 2px;
  background: var(--paper);
  transform: translateX(-50%);
  transition: transform .4s var(--ease), opacity .3s var(--ease), background .3s var(--ease);
}
.sb-burger span:nth-child(1) { top: 15px; }
.sb-burger span:nth-child(2) { top: 21px; }
.sb-burger span:nth-child(3) { top: 27px; }
.sb-burger.is-open span { background: var(--gold); }
.sb-burger.is-open span:nth-child(1) { top: 21px; transform: translateX(-50%) rotate(45deg); }
.sb-burger.is-open span:nth-child(2) { opacity: 0; }
.sb-burger.is-open span:nth-child(3) { top: 21px; transform: translateX(-50%) rotate(-45deg); }

.sb-mnav {
  position: fixed;
  inset: 0;
  z-index: 105;
  display: flex;
  padding: clamp(88px, 15vh, 120px) clamp(24px, 7vw, 48px) 40px;
  background: rgba(9, 9, 11, 0.86);
  -webkit-backdrop-filter: blur(22px) saturate(1.1);
  backdrop-filter: blur(22px) saturate(1.1);
  opacity: 0;
  visibility: hidden;
  transition: opacity .45s var(--ease), visibility .45s var(--ease);
}
.sb-mnav.is-open { opacity: 1; visibility: visible; }
.sb-mnav-inner {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 100%;
  margin-top: auto;
  margin-bottom: auto;
}
.sb-mnav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--faint);
  text-decoration: none;
  color: var(--paper);
  font-family: var(--disp);
  font-weight: 600;
  font-size: clamp(26px, 8vw, 38px);
  letter-spacing: -0.02em;
  opacity: 0;
  transform: translateY(18px);
  transition: color .3s var(--ease);
}
.sb-mnav-link i { width: 22px; height: 22px; color: var(--muted2); transition: color .3s var(--ease), transform .3s var(--ease); }
.sb-mnav-link:hover, .sb-mnav-link:active { color: var(--gold); }
.sb-mnav-link:hover i { color: var(--gold); transform: translate(3px, -3px); }
.sb-mnav.is-open .sb-mnav-link {
  opacity: 1;
  transform: none;
  transition: color .3s var(--ease), opacity .5s var(--ease), transform .5s var(--ease);
}
.sb-mnav.is-open .sb-mnav-link:nth-child(1) { transition-delay: .08s; }
.sb-mnav.is-open .sb-mnav-link:nth-child(2) { transition-delay: .14s; }
.sb-mnav.is-open .sb-mnav-link:nth-child(3) { transition-delay: .20s; }
.sb-mnav.is-open .sb-mnav-link:nth-child(4) { transition-delay: .26s; }
.sb-mnav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  margin-top: 30px;
  padding: 17px 28px;
  border-radius: 999px;
  text-decoration: none;
  background: linear-gradient(135deg, var(--gold), var(--gold2));
  color: #0A0A0B;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 16px;
  opacity: 0;
  transform: translateY(18px);
}
.sb-mnav.is-open .sb-mnav-cta {
  opacity: 1;
  transform: none;
  transition: opacity .5s var(--ease) .32s, transform .5s var(--ease) .32s;
}
.sb-mnav-foot {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 28px;
  font-size: 14px;
  color: var(--muted2);
}
.sb-mnav-foot a { color: var(--muted); text-decoration: none; transition: color .3s var(--ease); }
.sb-mnav-foot a:hover { color: var(--gold); }

@media (max-width: 820px) {
  .sb-burger { display: inline-flex; }
}
@media (max-width: 460px) {
  .sb-nav-cta { display: none !important; }
}

@media (prefers-reduced-motion: reduce) {
  .sb-mnav, .sb-mnav-link, .sb-mnav-cta, .sb-burger span { transition: opacity .2s linear !important; }
  .sb-mnav-link, .sb-mnav-cta { transform: none !important; }
}

/* Menü açıkken sayfa kaydırmasını kilitle */
body.sb-noscroll { overflow: hidden; }

/* Reduced motion -------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .sb-band-track { animation: none !important; }
  .sb-float, .sb-float2 { animation: none !important; }
  [data-col] { animation: none !important; }
}